An evaluation of SeaWinds/QuikSCAT data for the estimation of the decay status of first-year sea ice

This analysis evaluates the temporal evolution of the microwave backscatter coefficient (sigmadeg) and VV/HH sigmadeg co-polarization ratio from Qscat for estimating sea ice thermodynamics. Qscat sigmadeg were compared against RADARSAT-1 SAR sigmadeg and in situ data from the Collaborative Interdisc...

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Main Authors: Howell, S.E.L., Yackel, J.J., De Abreu, R.A., Galdsetzer, T., Breneman, C.
Format: Conference Proceeding
Language:English
Subjects:
Applied geophysics
Backscatter
Collaboration
Earth sciences
Earth, ocean, space
Exact sciences and technology
Internal geophysics
Marine geology
Polarization
Radar detection
Radar scattering
Remote sensing
Sea ice
Snow
State estimation
Thermodynamics
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container_start_page 2151
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creator Howell, S.E.L.
Yackel, J.J.
De Abreu, R.A.
Galdsetzer, T.
Breneman, C.
description This analysis evaluates the temporal evolution of the microwave backscatter coefficient (sigmadeg) and VV/HH sigmadeg co-polarization ratio from Qscat for estimating sea ice thermodynamics. Qscat sigmadeg were compared against RADARSAT-1 SAR sigmadeg and in situ data from the Collaborative Interdisciplinary Cryospheric Experiment (C-ICE) for 2000, 2001, and 2002 were used as validation. Results indicate that the temporal evolution of sigmadeg from Qscat is analogous to RADARSAT-1. The Qscat sigmadeg temporal evolution has the ability to identify Winter, Snow Melt, and Ponding thermodynamic states. Moreover, the co-polarization VV/HH ratio of Qscat provides a more robust estimate of the Ponding state and identifies the Drainage state that is difficult to detect by single polarization SAR
doi_str_mv 10.1109/IGARSS.2004.1370785
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subjects Applied geophysics
Backscatter
Collaboration
Earth sciences
Earth, ocean, space
Exact sciences and technology
Internal geophysics
Marine geology
Polarization
Radar detection
Radar scattering
Remote sensing
Sea ice
Snow
State estimation
Thermodynamics
title An evaluation of SeaWinds/QuikSCAT data for the estimation of the decay status of first-year sea ice
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